1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // |
3 | // CS35L56 ALSA SoC audio driver SPI binding |
4 | // |
5 | // Copyright (C) 2023 Cirrus Logic, Inc. and |
6 | // Cirrus Logic International Semiconductor Ltd. |
7 | |
8 | #include <linux/acpi.h> |
9 | #include <linux/module.h> |
10 | #include <linux/moduleparam.h> |
11 | #include <linux/regmap.h> |
12 | #include <linux/spi/spi.h> |
13 | #include <linux/types.h> |
14 | |
15 | #include "cs35l56.h" |
16 | |
17 | static int cs35l56_spi_probe(struct spi_device *spi) |
18 | { |
19 | const struct regmap_config *regmap_config = &cs35l56_regmap_spi; |
20 | struct cs35l56_private *cs35l56; |
21 | int ret; |
22 | |
23 | cs35l56 = devm_kzalloc(dev: &spi->dev, size: sizeof(struct cs35l56_private), GFP_KERNEL); |
24 | if (!cs35l56) |
25 | return -ENOMEM; |
26 | |
27 | spi_set_drvdata(spi, data: cs35l56); |
28 | cs35l56->base.regmap = devm_regmap_init_spi(spi, regmap_config); |
29 | if (IS_ERR(ptr: cs35l56->base.regmap)) { |
30 | ret = PTR_ERR(ptr: cs35l56->base.regmap); |
31 | return dev_err_probe(dev: &spi->dev, err: ret, fmt: "Failed to allocate register map\n" ); |
32 | } |
33 | |
34 | cs35l56->base.dev = &spi->dev; |
35 | cs35l56->base.can_hibernate = true; |
36 | |
37 | ret = cs35l56_common_probe(cs35l56); |
38 | if (ret != 0) |
39 | return ret; |
40 | |
41 | ret = cs35l56_init(cs35l56); |
42 | if (ret == 0) |
43 | ret = cs35l56_irq_request(cs35l56_base: &cs35l56->base, irq: spi->irq); |
44 | if (ret < 0) |
45 | cs35l56_remove(cs35l56); |
46 | |
47 | return ret; |
48 | } |
49 | |
50 | static void cs35l56_spi_remove(struct spi_device *spi) |
51 | { |
52 | struct cs35l56_private *cs35l56 = spi_get_drvdata(spi); |
53 | |
54 | cs35l56_remove(cs35l56); |
55 | } |
56 | |
57 | static const struct spi_device_id cs35l56_id_spi[] = { |
58 | { "cs35l56" , 0 }, |
59 | {} |
60 | }; |
61 | MODULE_DEVICE_TABLE(spi, cs35l56_id_spi); |
62 | |
63 | #ifdef CONFIG_ACPI |
64 | static const struct acpi_device_id cs35l56_asoc_acpi_match[] = { |
65 | { "CSC355C" , 0 }, |
66 | {}, |
67 | }; |
68 | MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match); |
69 | #endif |
70 | |
71 | static struct spi_driver cs35l56_spi_driver = { |
72 | .driver = { |
73 | .name = "cs35l56" , |
74 | .pm = pm_ptr(&cs35l56_pm_ops_i2c_spi), |
75 | .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match), |
76 | }, |
77 | .id_table = cs35l56_id_spi, |
78 | .probe = cs35l56_spi_probe, |
79 | .remove = cs35l56_spi_remove, |
80 | }; |
81 | |
82 | module_spi_driver(cs35l56_spi_driver); |
83 | |
84 | MODULE_DESCRIPTION("ASoC CS35L56 SPI driver" ); |
85 | MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); |
86 | MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); |
87 | MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>" ); |
88 | MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>" ); |
89 | MODULE_LICENSE("GPL" ); |
90 | |